smbd: simplify handling of failing fstat() after unlinking file

smbd: simplify handling of failing fstat() after unlinking file

close_remove_share_mode() already called vfs_stat_fsp(), so we can skip the
fstat() triggered in fd_close() by fsp->fsp_flags.fstat_before_close being true.

This avoids getting an EACCESS error when doing an fstat() on the removed file
which seems to happen with some FUSE filesystems.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15527

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>